CN211560522U

CN211560522U - Automatic quantitative smoking device

Info

Publication number: CN211560522U
Application number: CN201922099776.4U
Authority: CN
Inventors: 孙振华; 何文
Original assignee: Jiangsu Purecell Bio Medicine Technology Co ltd
Current assignee: Jiangsu Purecell Bio Medicine Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-09-25
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses an automatic change quantitative smoking device, the device is including supplying the smoke box, reaction box and smoking bucket, supply to use the gas-supply pipe intercommunication between smoke box and the reaction box, use the outlet duct intercommunication between reaction box and the smoking bucket, insert first motorised valve on the gas-supply pipe, insert the second motorised valve on the outlet duct, it is equipped with first air supply fan to supply the smoke roof portion, the bottom is equipped with the tobacco placer, the top of reaction box is equipped with the second air supply fan, be equipped with the smoking thing that can adsorb the cigarette in the smoking bucket, utilize the smoke detector, oxygen concentration sensor and pressure sensors detect the smoke concentration in the reaction box respectively, oxygen concentration and pressure, according to the setting value, through the first fan of control, first motorised valve, the second fan, the operation of second motorised valve, and then smoke and oxygen concentration in the quantitative control reaction box.

Description

Automatic quantitative smoking device

Technical Field

The utility model relates to an animal experiment device, in particular to change device is smoked to ration.

Background

In the technical field of medical animal experiments, smoking is often applied to animal disease model establishment, such as chronic bronchitis animal models, emphysema animal models, chronic obstructive pulmonary disease animal models, induced lung cancer animal models and the like.

At present, the smoking animal model device is mainly a self-made smoking box or a self-made smoking box with air holes. For example, patent CN202654264U discloses a device for making an animal model of smoked chronic obstructive pulmonary disease, please refer to fig. 3, the device is a box body composed of a side plate, a bottom plate and a movable top cover, a smoke exhaust device is arranged on the movable top cover, an air intake device is arranged on the side plate, a fan is arranged outside the box body near the air intake device, and a smoke combustion chamber is arranged on the bottom plate. The tobacco is burned in the combustion chamber and the smoke produced cannot be quantitatively controlled, resulting in too much or too little smoke concentration in the smoking chamber. The prior device has the following defects: (1) due to the differences of the body weights and the constitutions of the mice of different sizes, the smoking concentration and the tolerance are different, and a model cannot be stably and uniformly established; (2) death of the modeled animals due to excessive smoke concentration or oxygen consumption in the smoking chamber; (3) the big and small mice love the holding ball, and the uniformity of the smoking amount of each modeling animal cannot be realized; (4) direct smoke emission affects the laboratory air environment. The defects can cause large errors of test data and influence the acquisition of normal data.

SUMMERY OF THE UTILITY MODEL

For solving at least one defect among the above-mentioned prior art, the utility model provides an automatic change quantitative and smoke device, the device includes:

the tobacco supplying box is internally provided with a tobacco placer and is provided with a first air supply fan;

the reaction box is provided with a second air supply fan, and a smoke sensor, an oxygen concentration sensor and a pressure sensor are arranged in the reaction box;

the gas pipe connects the reaction box with the smoke supply box, and a first electric valve is connected to the gas pipe;

the smoking barrel is internally provided with smoking objects capable of adsorbing smoke;

the reaction box is connected with the smoking barrel through the air outlet pipe, and the second electric valve is connected to the air outlet pipe; and

the controller is respectively electrically connected with the smoke sensor, the oxygen concentration sensor, the pressure sensor, the first air supply fan, the first electric valve, the second air supply fan and the second electric valve;

the controller is used for receiving smoke concentration information in the reaction box from the smoke sensor, stopping the first air supply fan from running and closing the first electric valve when the smoke concentration is higher than the set smoke concentration, and stopping supplying smoke to the reaction box;

the controller is also used for receiving oxygen concentration information in the reaction box from the oxygen concentration sensor, starting the second air supply fan when the oxygen concentration is lower than the set oxygen concentration lower limit, conveying air into the reaction box, and stopping the second air supply fan when the oxygen concentration exceeds the set oxygen concentration upper limit;

the controller is also used for receiving pressure information in the reaction box from the pressure sensor, and opening the second electric valve to discharge redundant smoke in the reaction box when the pressure is higher than a set pressure value.

The confession smoke box of this embodiment is regional for burning the cigarette, the reaction box is the animal feeding district, the smoking bucket is smog recovery district, three region arranges respectively in the box of difference, communicate with the pipeline between the box, and control the pipeline break-make with the electric valve, according to the smoke density message that the smoke detector detected, the oxygen concentration message that oxygen concentration sensor detected, the reaction box pressure message that the pressure sensors detected, the first air supply fan of controller control, first electric valve, the operation of second air supply fan and second electric valve, realize the interior smoke density of reaction box, the automatic quantitative control of oxygen concentration and pressure value, the beneficial effect who from this brings is: (1) experimenters can utilize the quantitative control advantage of the device according to the difference of the smoking concentration and tolerance of rats and mice, thereby being beneficial to stably and uniformly establishing a smoking model; (2) the death of the modeling animal caused by overhigh smoke concentration or oxygen consumption in the reaction box is effectively prevented; (3) the smoking barrel recovers the waste smoke, and reduces the environmental pollution of the laboratory.

In some embodiments, the side of the smoke supply box is provided with a first door window, and the first door window comprises transparent glass and a sealing ring. Tobacco can be put into in the tobacco placer after opening first door and window, sees through the burning condition of first door and window observation tobacco. After closing first door and window, the sealing washer plays sealed effect, avoids smog to leak from first door and window.

In some embodiments, the tobacco retainer is made of quartz. The quartz material has the advantage of being resistant to high temperatures.

In certain embodiments, the reaction chambers are evenly divided into equal portions by an isolation mesh. The isolation net separates a plurality of animal feeding areas in the reaction box, and smoking models of a plurality of animals can be established at the same time.

In certain embodiments, the isolation mesh is removably mounted within the reaction chamber. The separation net can be detached, so that the space size of each animal feeding area can be adjusted conveniently according to the size of the animals.

In certain embodiments, the isolation mesh is a stainless steel mesh. And the animal feeding areas are isolated by a wire mesh, so that the error of animal model establishment can be reduced.

In some embodiments, the apparatus further comprises a display screen for inputting the set smoke concentration, the set upper oxygen concentration limit, the set lower oxygen concentration limit, and the set pressure value.

In some embodiments, the top of the reaction chamber is provided with a second door and window, the second door and window comprises transparent glass, and the second air supply fan is arranged on the second door and window. After the second door window is opened, the modeling animal can be put into or taken out of the reaction box. The tester can also observe the state of the mouse through the second door and window.

In certain embodiments, the smoking article comprises activated carbon. The activated carbon plays a role in adsorbing smoke.

Drawings

Fig. 1 is an automated quantitative smoking device according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of a connection relationship of a controller according to an embodiment of the disclosure.

FIG. 3 is a schematic view of a smoking device in the prior art.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the present disclosure provides an automatic quantitative smoking device, which includes a smoke supply box 2, a reaction box 7 and a smoking barrel 15, wherein the smoke supply box 2 is communicated with the reaction box 7 through a gas pipe 5, the reaction box 7 is communicated with the smoking barrel 15 through a gas outlet pipe 14, a first electric valve 6 is connected to the gas pipe 5, and a second electric valve 13 is connected to the gas outlet pipe 14. The first electric valve 6 and the second electric valve 13 respectively control the on-off of the corresponding pipelines.

The top of the smoke supply box 2 is provided with a first air supply fan 1, and the inner bottom of the smoke supply box 2 is provided with a tobacco placer 4. The tobacco supply box 2 is a smoke generation area, tobacco is combusted in the tobacco placing device 4, and the first air supply fan 1 is used for conveying air into the tobacco supply box 2 and providing oxygen for the combustion of the tobacco. When the first electric valve 6 is opened, smoke generated by the combustion of tobacco enters the reaction box 7 through the gas conveying pipe 5. Preferably, the first blowing fan 1 adopts a low-speed blowing mode, and the air volume is adjustable, so that the effect of adjusting the generation of smoke can be achieved.

The reaction box 7 is an animal raising area. The top of the reaction box 7 is provided with a second air supply fan 18, and the second air supply fan 18 is used for conveying air into the reaction box 7 and increasing the oxygen concentration in the reaction box 7. Be equipped with smoke sensor 10, oxygen concentration sensor 11 and pressure sensors 12 in reaction box 7, wherein smoke sensor 10 is used for the smoke concentration in real-time supervision reaction box 7, and oxygen concentration sensor 11 is used for the oxygen concentration in real-time supervision reaction box 7, and pressure sensors 12 is used for the pressure in real-time supervision reaction box 7.

The smoking barrel 15 is provided with a smoking material 16 capable of adsorbing smoke. When the second electric valve 13 is opened, the smoke in the reaction box 7 enters the smoking barrel 15 through the air outlet pipe 14. The excessive smoke is discharged into the smoking barrel 15 and then absorbed by the smoking object 16, so that the smoke is prevented from diffusing into a laboratory to pollute the indoor environment.

Referring to fig. 2, the automatic quantitative smoking device of the present disclosure further includes a controller 9, wherein the controller 9 is electrically connected to the smoke detector 10, the oxygen concentration sensor 11, the pressure sensor 12, the first air supply fan 1, the first electrically operated valve 6, the second air supply fan 18, and the second electrically operated valve 13, respectively. The controller 9 may be a PLC controller.

The controller 9, the smoke detector 10, the first air supply fan 1 and the first electric valve 6 are matched to control the smoke concentration in the reaction box 7 not to exceed the set smoke concentration. The set smoke concentration is selected according to modeling requirements, typically a point value, and if the smoke concentration required for modeling is a range value, an intermediate value may be taken as the set oxygen concentration input. The smoke sensor 10 converts the smoke concentration change signal in the reaction box 7 into an electric signal and transmits the electric signal to the controller 9, and the controller 9 receives the smoke concentration information in the reaction box 7 from the smoke sensor 10. If the smoke density in the reaction box 7 does not reach the set smoke density, the first blower fan 1 is kept in the operating state, the first motor-operated valve 6 is kept in the open state, and the smoke is continuously supplied to the reaction box 7. Along with the increase of the smoke concentration in the reaction box 7, when the smoke concentration is higher than the set smoke concentration, the controller 9 stops the first air supply fan 1 and closes the first electric valve 6 to stop supplying smoke to the reaction box 7, so that the death of animals caused by overhigh smoke concentration in the reaction box 7 is avoided.

The controller 9, the oxygen concentration sensor 11 and the second air supply fan 18 are matched, and the oxygen concentration in the reaction box 7 is controlled not to be lower than the set lower limit of the oxygen concentration. Specifically, the oxygen concentration sensor 11 converts the oxygen concentration change signal in the reaction box 7 into an electric signal and transmits the electric signal to the controller 9, the controller 9 receives the oxygen concentration information in the reaction box 7 from the oxygen concentration sensor 11, and when the oxygen concentration is lower than the set oxygen concentration lower limit, the second air supply fan 18 is started to supply air to the reaction box 7, so that the animals are prevented from suffocating and dying due to the fact that the oxygen concentration in the reaction box 7 is too low. Further, an upper limit of oxygen concentration is set, and as the oxygen concentration in the reaction tank 7 increases, the controller 9 turns off the second blower fan 18 when the oxygen concentration is higher than the set upper limit of oxygen concentration. Thereby, the oxygen concentration in the reaction chamber 7 can be maintained between the lower limit of the set oxygen concentration and the upper limit of the set oxygen concentration.

The controller 9 cooperates with the second electric valve 13 to discharge the excessive smoke out of the reaction chamber 7. Specifically, as the smoke and air enter the reaction chamber 7, the pressure in the reaction chamber 7 rises, the pressure sensor 12 detects the pressure value in the reaction chamber 7, the controller 9 receives the pressure information in the reaction chamber 7 from the pressure sensor 12, and when the pressure is higher than the set pressure value, the second electric valve 13 is opened to discharge the excessive smoke in the reaction chamber 7.

Further, the side of the smoke supply box 2 is provided with a first door window 3, and the first door window 3 comprises transparent glass and a sealing ring. Tobacco can be put into in the tobacco placer 4 after opening first door and window 3, sees through the burning condition of first door and window 3 observation tobacco. The sealing washer sets up at first door and window 3 edges, closes first door and window 3 back, and the sealing washer plays sealed effect, avoids smog to leak from first door and window 3 edges.

Further, the material of the tobacco container 4 is quartz. The quartz tobacco holder 4 has the advantage of being resistant to high temperatures.

Further, the reaction chambers 7 are equally divided by the separation net 8. The isolation net 8 separates a plurality of animal feeding areas in the reaction box, and can establish the smoking models of a plurality of animals at the same time, thereby effectively avoiding the conglomeration between the animals. Preferably, the separation net 8 is detachably installed in the reaction box 7, so that the size of a space of each animal housing area can be adjusted according to the size of an animal.

Further, the separation net 8 is a stainless steel net. And the animal feeding areas are isolated by a wire mesh, so that the error of animal model establishment can be reduced.

Further, the device also comprises a display screen 19, wherein the display screen 19 is used for inputting the set smoke concentration, the set oxygen concentration upper limit, the set oxygen concentration lower limit and the set pressure value. The display screen 19 may be installed on the outer wall of the reaction chamber 7. The display screen 19 is a touch screen capable of displaying a man-machine interface, and an experimenter can input parameters such as set smoke concentration, set oxygen concentration upper limit, set oxygen concentration lower limit and set pressure value on the interface. The display screen 19 can also display the smoke concentration, the oxygen concentration and the pressure value in the reaction box 7 in real time.

Further, a second door 17 is provided on the top of the reaction chamber 7, the second door 17 comprises transparent glass, and a second blowing fan 18 is provided on the second door 17. After the second door 17 is opened, the modeling animal can be put into or taken out of the reaction box. The experimenter can also observe the status of the modeled animal through the second door window 17.

Further, the smoking article 16 comprises activated carbon. The activated carbon plays a role in adsorbing smoke.

The automatic quantitative smoking device has the advantages that:

(1) when the smoke density in the reaction box 7 reaches the set smoke density, the supply of smoke to the reaction box 7 is automatically stopped, and the smoke density in the reaction box 7 is maintained at the set smoke density level. The method has the advantages that animal death caused by overhigh smoke concentration can be effectively prevented, and modeling failure caused by insufficient smoke concentration can also be prevented. In addition, experimenters can respectively select and set the smoke concentration according to the weight and the constitution difference of the big mice, and stable and uniform model building is realized.

(2) The oxygen concentration is kept in the range required by modeling, and the animal is prevented from suffocating and dying due to too low oxygen concentration;

(3) the small chambers are uniformly spaced in the test box, so that simultaneous modeling of a plurality of big mice and small mice can be realized, and modeling smoking uniformity among individuals can be ensured;

(4) the air in the laboratory is fresh through the smoke exhausted by the activated carbon adsorption.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. An automated quantitative smoking device, comprising:

the tobacco feeding box (2) is internally provided with a tobacco placing device (4), and the tobacco feeding box (2) is also provided with a first air supply fan (1);

the reaction box (7) is provided with a second air supply fan (18), and a smoke sensor (10), an oxygen concentration sensor (11) and a pressure sensor (12) are arranged in the reaction box (7);

the gas pipe (5) connects the reaction box (7) with the smoke supply box (2), and a first electric valve (6) is connected to the gas pipe (5);

the smoking barrel (15), the smoking barrel (15) is internally provided with a smoking article (16) capable of absorbing smoke;

the reaction box (7) is connected with the smoking barrel (15) through the air outlet pipe (14), and the second electric valve (13) is connected to the air outlet pipe (14); and

the controller (9), the controller (9) respectively with smoke detector (10), oxygen concentration sensor (11), pressure sensor (12), first blower fan (1), first motorised valve (6), second blower fan (18) and second motorised valve (13) electric connection;

the controller (9) is used for receiving smoke concentration information in the reaction box (7) from the smoke sensor (10), stopping the first air supply fan (1) from operating and closing the first electric valve (6) when the smoke concentration is higher than the set smoke concentration, and stopping supplying smoke to the reaction box (7);

the controller (9) is also used for receiving oxygen concentration information in the reaction box (7) from the oxygen concentration sensor (11), starting a second air supply fan (18) when the oxygen concentration is lower than a set oxygen concentration lower limit, conveying air into the reaction box (7), and stopping the second air supply fan (18) when the oxygen concentration exceeds the set oxygen concentration upper limit;

the controller (9) is also used for receiving pressure information in the reaction box (7) from the pressure sensor (12), and when the pressure is higher than a set pressure value, the second electric valve (13) is opened, and redundant smoke in the reaction box (7) is discharged.

2. The automated quantitative smoking device according to claim 1, wherein the side of the smoke supply box (2) is provided with a first door window (3), and the first door window (3) comprises a transparent glass and a sealing ring.

3. The automated quantitative smoking device according to claim 1, wherein the tobacco placer (4) is made of quartz.

4. The automated quantitative smoking device according to claim 1, wherein the reaction chambers (7) are equally divided by an isolation net (8).

5. The automated quantitative smoking device according to claim 4, wherein the isolation mesh (8) is a stainless steel mesh.

6. The automated quantitative smoking device according to claim 4, wherein the isolation net (8) is detachably mounted in the reaction box (7).

7. The automated quantitative smoking device of claim 1, further comprising a display screen (19), wherein the display screen (19) is used for inputting a set smoke concentration, a set upper oxygen concentration limit, a set lower oxygen concentration limit and a set pressure value.

8. The automated quantitative smoking device according to claim 1, wherein a second door and window (17) is arranged on the top of the reaction box (7), the second door and window (17) comprises transparent glass, and the second air supply fan (18) is arranged on the second door and window (17).

9. The automated quantitative smoking device of claim 1, wherein the smoking article (16) comprises activated carbon.